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Gem Pricing Advice for Faceters

Gem pricing isn’t easy, and guidelines aren’t always fixed. Learn what factors gem cutters should consider to determine a fair price for their…

What is Gemstone Pleochroism?

Some gems show pleochroism, two or three different colors depending on the viewing angle. Learn why this occurs and how it helps gemologists identify…

Rubellite Tourmaline Buying Guide

Like all tourmaline gemstones, rubellite wears well in almost any type of jewelry. This stone’s raspberry-like color draws a great deal of attention.…